"Remember the Sabbath day, to keep it Holy"

"Remember the Sabbath day, to keep it holy. Six days shalt thou labour, and do all thy work: But the seventh day is the Sabbath of The Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: For in six days The Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore The Lord blessed the Sabbath day, and hallowed it" (Exodus 20:8-11 KJV)

The Fourth Commandment

The Sabbath Day, and only the Sabbath Day, was made Holy by God at the time of Creation.

"Thus the heavens and the earth were finished, and all the host of them. And on the seventh day God ended His work which He had made; and He rested on the seventh day from all His work which He had made. And God blessed the seventh day, and sanctified it: because that in it he had rested from all His work which God created and made" (Genesis 2:1-3 KJV)

The Sabbath Day is God's Holy Day; it is not the invention, or property of, Jews or Sabbath-keeping Christians. It is God's Holy Day:

"If thou turn away thy foot from the Sabbath, from doing thy pleasure on My Holy Day; and call the Sabbath a delight, the holy of The Lord, honourable; and shalt honour Him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: Then shalt thou delight thyself in The Lord; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of The Lord hath spoken it." (Isaiah 58:13-14 KJV)

The Sabbath Day is an identifying sign; it identifies the only true God, the Creator, and it identifies His true people (although Sabbath-keeping alone is not enough - there are many who are Sabbath keepers who are notThe Elect):

"And I gave them My statutes, and showed them My judgments, which if a man do, he shall even live in them. Moreover also I gave them My Sabbaths, to be a sign between Me and them, that they might know that I am The Lord that sanctify them" (Ezekiel 20:11-12 KJV)

The Sabbath Day is not the "Jewish Sabbath," it is God's Sabbath. Jesus Christ, the greatest "Christian" of all, observed the Sabbath Day, and only the Sabbath Day (the pagan Roman "sun day" did already exist at that time, but Jesus Christ, and the apostles, and the early church, were all Sabbath keepers - they would never have observed the heathen "sun-worship day"):

"And they went into Capernaum; and straightway on the Sabbath day He entered into the synagogue, and taught." (Mark 1:21 KJV)

"And when the Sabbath day was come, He began to teach in the synagogue: and many hearing Him were astonished, saying, From whence hath this man these things? And what wisdom is this which is given unto Him, that even such mighty works are wrought by His hands?" (Mark 6:2 KJV)

Christians continued to observe the Sabbath after Christ's sacrifice:

"And when the Jews were gone out of the synagogue, the Gentiles besought that these words might be preached to them the next Sabbath. Now when the congregation was broken up, many of the Jews and religious proselytes followed Paul and Barnabas: who, speaking to them, persuaded them to continue in the grace of God. And the next Sabbath day came almost the whole city together to hear the word of God" (Acts 13:42-44 KJV)

The seventh day never stopped being God's Sabbath. It has always been observed by Christians who base their Christianity on the Word of God, the Holy Bible, and it will always be observed into the future. After The Return Of Jesus Christ, all people, of all nations, will learn (the easy way, or the hard way - their choice, and yours) to observe God's weekly Sabbath:

"For as the new heavens and the new earth, which I will make, shall remain before Me, saith
The Lord, so shall your seed and your name remain. And it shall come to pass, that from one new moon to another, and from one Sabbath to another, shall all flesh come to worship before Me, saith The Lord" (Isaiah 66:22-23 KJV)

Fact Finder: How did the pagan Roman empire bring about the corrupt change from God's true and only Sabbath Day to the Roman "venerable day of the sun" - a change that has been blindly accepted by generation after generation of Christian-professing people ever since?
See Sun Worship